Home / 13,205,585.85-18,223,894.95-7,977,867.33

Finding the Fourth Proportional to 13,205,585.85, 18,223,894.95 and 7,977,867.33

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Solution

The fourth proportional to 13,205,585.85, 18,223,894.95 and 7,977,867.33 is: 11,009,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,585.85 : 18,223,894.95 = 7,977,867.33 : x
  2. Step 2: Convert to fraction form
    13,205,585.85/18,223,894.95 = 7,977,867.33/x
  3. Step 3: Cross multiply
    13,205,585.85x = 18,223,894.95 × 7,977,867.33
  4. Step 4: Simplify right side
    13,205,585.85x = 145,387,816,146,956.97
  5. Step 5: Solve for x
    x = 145,387,816,146,956.97/13,205,585.85
  6. Step 6: Final answer
    x = 11,009,569.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.